Tractor.



A. w. JACOBS.

TRACTOR.

APPLICATION FILED AUG-4. 1915.

Patented Apr. 3, 1917.

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TRACTOR.

APPLICATION FILED AUG-451915.

Patentd Apr. 3, 1917.

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, mmrron Aifierfmaaa MTORIIIEYS Specification of Letters Patent.

Pateted a tt't.

Application filed August t, 1915. serial no. taste;

To all whom it may concern."

]Be it knownthat I, ALBERT JAcoBs, a citizen of the United States, and aresident of Yutan, in the county of Saunders and State of Nebraska, haveinvented a new and Tmproved Tractor, of which the following is a full,clear, and exact description.

y invention has for its object to provide a tractor which isparticularlywell adapted to for um on large corn fields, the tractor being soconstructed that it may be used not' only for drawing planters acrossthe fields but it also may be used to advantage for draw ng eultivatorswithout injury to the growmg t3 corn.

While the tractor may be steered when desired, it is ordinarilyunnecessary for the operator to manipulate the steering mechanism forthe tractor is provided with guide- 26 wheels for traveling in furrows,it being possible to raise these guide wheels when the operator wishesto turn the tractor at the end of a field.

The tractor is driven by endless chains which carry projecting ribswhich engage the round.

Still other objects of the invention will appear in the followingspecification in which the preferred form of the invention is disclosed.

Tn the drawings similar reference characare openings 18 for receivingthe studs 19 on the belts 17 with the rotation of the drums, this meansbeing provided to prevent any lost motion between the drums 13 and 16and the belts 17. Secured to t e belts 17 there'are ribs 20, which areprovi edfor engaging the ground so that with therotation of the drumsthe belts will move the said ribs 20 into engagement with the ground andrearwardly of the frame 10,

thereby moving the frame'forwardly. The ribs 20 are preferablyconstructed in two sections as illustrated in Fig. 1' of the drawings,these sections being bolted to the belts 17, the sections having theirouter surfaces concave transversely of the machine. .The r bs aresufliciently long to substantially cover the ground between two furrows,the

ribs on one of the belts being spaced from the ribs on the companionbelt substantially the width of an intervening furrow. In the drawingsthis intervening furrow is referred to by the reference character 21,the furrows at the sides of this intervening furrow being indicated bythe reference character 22.

Mounted on the frame 10 there is an engine 23, having cylinders 24, theshaft 25 be- .lng rotated by the engine in the. usual manner, this shaftleading to the differential v 26, which is connected with the shafts 27to ters refer to similar parts in'all the views in which, V

Figure 1 is a plan view of my tractor, parts being broken away to showthe construction;

Fig. 2 is a side elevation of Fig. 1; and Fig. 3 is a front elevation ofthe tractor. 1 By referring to the drawings it will be seen that a frame10 is provided which has bearings 11, in which shafts 12 are journaled,these shafts 12 being disposed side by side and being spaced apart aswill be seen by referring to Fig. 1 of the drawings. Secured to each ofthe shafts 12 there is 'a drum 13. Disposed in front of the shafts 12,there are additional shafts 14 which are journaled in bearings 15 in theframe, there being two drums 16, one mounted on each of the shafts 14,the said drums16 being disposed in alinement with the drums 13 so thatbelts 17 may be used for connecting the drums 13 and 16, there being twoof the said belts 17, which I dispose around the drums as illustrated inthe drawings.

In theperiphery of the drums 16 thererotate the latter, sprocket wheels28 being secured to the shafts and being connected with the sprocketwheels 29 on the shafts 12 by sprocket chains 30. The belts 17 will, ofcourse, be driven when the shafts 12 are rotated by thenranner setforth, thesebelts 17 being held yielding in position between the drums13 and 16 by the rollers 31, journaled in bearings 32 on the cars 33,which have openings 34, through which the boltsh,

35 extend, said bolts 35 being securedto the.

frame 10. Springs 36 are colled on the bolts 35 and abut againstthe'frame-IO and against the cars 33 to hold the said cars 33 yieldingdown.

The body of the frame is supported by the belts 17 and the ribs 20, andas the frame 1s moved forwardly, the corn rowing in the furrow 21 willnot be injured by the-tractor as the corn will be disposed between thedrums and belts and under the frame and the engine 23. The sides of theframe 10 are curved u wardly and forwardly at 37, and at their orwardends they are provided with a bearing 38, in-which is journaled theinverted U-shape axle 39 having the laterally extending axles 40, onwhich the spools- U nal on the axle 39 journaled is smured ta thetransverse bar 43, this 57, there are the opposite direction,

.posed in furrows '21 and 22, the guide wheels which transversebar 43being connected with the drums 44 and 47 by chains 45, a chain 45 beingsecured to each end 46 of the transverse bar 43, the said drums 44 beingsecured to a shaft 48 and the drum 47 being secured to a shaft 49, theseshafts 48 and 49 being oper-, ated by the longitudinally extending shaft50 by means of the usual gearing contained in the gear box 51. One ofthe chains 45 is wound over and down on the drum 44, and the other chain45 is wound under and .up on the drum 47, so that when the shafts 48 and49, are rotated in one direction, one of the chains will be wound on itsdrum, and when the shafts 48 and 49 are rotated in the other chain 45will be wound on its drum. The shaft 48 isjournaled in a bearing 51 andthe shaft 49 is journaled in a bearing 52, these bearings 51 and 52being mounted on the portions 37 of the frame. The shaft 50 is journaledin a bearing 53 and itmay be rotated by means of the wheel 54, rovidedwith a handle 55.

It will be und rstood that when the tractor is driven it may besteeredby the means which have been described for rocking the axles 40 and thespools 41 on a vertical axis, but ordinarily it is not necessary fortheoperator to give the steering mechanism any attention for when thetractor has been disproper position relatively to the I will nowdescribe will keep the tractor in proper position as it travels over theound. Two sets of guide wheels are provi ed, the forward set of guidewheels being indicated in the drawings by the reference character 56,these guide wheels being mounted on outwardly bent terminals 57 of aninverted U- shapedaxle 58, this axle being constructed in this shape sothat it will not interfere with the corn which may be growing in thefurrow. 21. To the axle 58' at its terminals secured links 59, theselinks 59- being ivoted at 60 to the terminals 40 of the ax e 39. It willtherefore be seen that whenthe guide wheels 56 travel in the furrow 21,they will serve to prevent the movement of the spools 41 out ofalinement, but when it is desired to turn the tractor, these guidewheels 56 must be raised as will be readily understood, and to.accomplish this I s 68 is secured to a shaft in bearings 71, and whiching the arms 69 by means ings with the rotation 1 im 61 a the links 59at 62, these lis 61 being also articulated to the arm the projectingjournal 42, the other arm 66 of the said bellcrank lever being connectedby a link 67 with a lever 68 at 69. This lever 70 which is journaledprojects outwardly a considerable distance at both sides of the tractor,arms 72 being secured to the ends of the shaft 70, said arms extendingdownwardly and rearwardly therefrom for carrying the guide wheels 3,these guide wheels belng provided for traveling in the furrows 22 at thesides of the furrow 21. It will be understood that the lever 68 maybeoperated to draw rearwardly the link 67, thereby raisof the bellcranklever 64, and the links 61, and at the same time this movement of thelever-68 will serve to rock the shaft 7 0,-thereby raising the arms 72,and'that when'this'is done, not only will the guide wheels 56 row 21,but the guide wheels 73 will be raised from the furrows 22. A seat 74 ismounted on the frame 10 for the operator.

Having thus described my invention I claim as new, and desire to secureby Letters Patent 1. In a tractor, a frame, two dzums rotatably mountedon the frame one in front of the other, there being openings in thesides of the drums at their peripheries, a belt disposed around thedrums and having two rows of studs spaced apart and extending laterallyfor seating themselves in the openof the drums, and means to rotate oneof the drums.

.-2. In a tractor, a, frame, two drums disposed side by side and spacedapart, means disposed around the drums and having their outer edgescurved transversely to engage theground to move the frame forward, twospools disposed in alinement with the drums and spaced apartsubstantially the same distance as the drums are spaced apart, the outersurfaces-of the spools being arched transversely anaxle on which the s001s are mounted, the axle bein pivoted to t e frame on a vertical axis,an means for rotating the axle. a a

- 3. In a tractor, a frame, two drums rotatably mounted on the frame onein front of the other, there being openings in the sides of the drums attheir peripheries, a belt disposed around the drums and having two rowsof studs spaced apart for seating themselves in the openings with therotation of the drums, means to rotate one of the drums,

acardisposed between the drums and having a roller for pressingdownwardly against the belt, and resilient means for holding the cardown-relatively to theframe.

4. In a tractor, a frame having sides converging upwardly and forwardly,two drums be raised from the fur-- 63 of a bellcrank lever 64 pivoted at65 to wanna w spaced apart one at each side of the body In testimonywhereof I have signed my of the frame and journaled in bearings name tothis specification in the presence of 19 therein, an inverted U-shapedaxle for spantwo subscribing witnesses.

ning a furrow and having outwardly bent 5 terminals, and two spools onemounted on ALBERT WILLIAM JACOBS each terminal, the axle beingepivotedfor ro- Witnesses: tating on a vertical axis at the front of the PAUL E.KOERBER,

frame. HARRY C. PARMENTER.

